From 428abf6455c9df0dfaca05165764eb842da7e2d9 Mon Sep 17 00:00:00 2001
From: Sven Wischnowsky <wischnow@users.sourceforge.net>
Date: Tue, 13 Jun 2000 11:26:07 +0000
Subject: new style `suffix'; use accept-exact style in _expand (?)

---
 ChangeLog               |  3 +++
 Completion/Core/_expand | 25 ++++++++++++++++++-------
 Doc/Zsh/compsys.yo      | 14 ++++++++++++++
 3 files changed, 35 insertions(+), 7 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 42c3cc23c..13a6fcc51 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2000-06-13  Sven Wischnowsky  <wischnow@zsh.org>
 
+	* ?????: Completion/Core/_expand, Doc/Zsh/compsys.yo: new style
+	`suffix', use accept-exact style in _expand
+	
 	* ?????: Src/Zle/complist.c: fix for longer capability strings;
 	very bad
 
diff --git a/Completion/Core/_expand b/Completion/Core/_expand
index 25145f752..9ba055a6e 100644
--- a/Completion/Core/_expand
+++ b/Completion/Core/_expand
@@ -18,12 +18,6 @@ local exp word sort expr expl subd suf=" " force opt asp tmp opre pre epre
       force="$force$opt"
     done
 
-if [[ "$funcstack[2]" = _prefix ]]; then
-  word="$IPREFIX$PREFIX$SUFFIX"
-else
-  word="$IPREFIX$PREFIX$SUFFIX$ISUFFIX"
-fi
-
 # First, see if we should insert all *completions*.
 
 if [[ "$force" = *c* ]] ||
@@ -34,7 +28,24 @@ if [[ "$force" = *c* ]] ||
   return 1
 fi
 
-# In exp we will collect the expansion.
+if [[ "$funcstack[2]" = _prefix ]]; then
+  word="$IPREFIX$PREFIX$SUFFIX"
+else
+  word="$IPREFIX$PREFIX$SUFFIX$ISUFFIX"
+fi
+
+zstyle -t ":completion:${curcontext}:" suffix &&
+  [[ "$word" = (\~*/*|\$[a-zA-Z0-9_]##[^a-zA-Z0-9_]*|\$\{*\}?*) ]] &&
+  return 1
+
+zstyle -t ":completion:${curcontext}:" accept-exact ||
+  { [[ "$word" = \~(|[-+]) ||
+       ( "$word" = \~[-+][1-9]## && $word[3,-1] -le $#dirstack ) ||
+       ( "$word" = \~* && ${#userdirs[(I)${word[2,-1]}*]}+${#nameddirs[(I)${word[2,-1]}*]} -ne 1 ) ||
+       ( "$word" = \$[a-zA-Z0-9_]## && 
+         ${#parameters[(I)${word[2,-1]}*]} -ne 1 ) ]] && return 1 }
+
+# In exp we will collect the expansions.
 
 exp=("$word")
 
diff --git a/Doc/Zsh/compsys.yo b/Doc/Zsh/compsys.yo
index 24ada7446..82975e0fd 100644
--- a/Doc/Zsh/compsys.yo
+++ b/Doc/Zsh/compsys.yo
@@ -779,6 +779,12 @@ This is tested for the default tag and the tags used when generating
 matches.  If it is set to `true' for at least one match which is the
 same as the string on the line, this match will immediately be
 accepted.
+
+Note that this is also used by the tt(_expand) completer to decide if
+words beginning with a tilde or parameter expansion should be
+expanded. This means that if, for example, there are parameters
+tt(foo) and tt(foobar), the string `tt($foo)' will only be expanded if 
+tt(accept-exact) is set to `true'.
 )
 kindex(add-space, completion style)
 item(tt(add-space))(
@@ -1786,6 +1792,14 @@ example(zstyle ':completion:*:expand:::' substitute '${NUMERIC:-1} != 1')
 substitution will be performed only if given an explicit numeric
 argument other than `tt(1)', as by typing `tt(ESC 2 TAB)'.
 )
+kindex(suffix, completion style)
+item(tt(suffix))(
+This is used by the tt(_expand) completer if the word starts with a
+tilde or parameter expansion. If it is set to `true', the word will
+only be expanded if it doesn't have a suffix, i.e. if it is something
+like `tt(~foo)' or `tt($foo)', but not if it is `tt(~foo/)' or
+`tt($foo/bar)'. The default for this style is `false'.
+)
 kindex(tag-order, completion style)
 item(tt(tag-order))(
 This provides a mechanism for sorting how the tags available in a
-- 
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